EP 3689455 A4 20210609 - HONEYCOMB CATALYST
Title (en)
HONEYCOMB CATALYST
Title (de)
WABENKATALYSATOR
Title (fr)
CATALYSEUR EN NID D'ABEILLES
Publication
Application
Priority
- JP 2017186473 A 20170927
- JP 2018035837 W 20180927
Abstract (en)
[origin: EP3689455A1] The present invention relates to a honeycomb catalytic converter including: a honeycomb structured body including in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween; and a noble metal supported on the honeycomb structured body, wherein the honeycomb structured body contains a ceria-zirconia complex oxide and alumina, each partition wall includes a first carrier layer defining a surface layer of the partition wall and carrying Rh, and a second carrier layer located more inwardly of the partition wall than the first carrier layer and carrying Pd, and the Pd concentration on the first carrier layer side of each second carrier layer is higher than the Pd concentration in the center of the second carrier layer.
IPC 8 full level
B01J 23/63 (2006.01); B01D 53/94 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 35/04 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01)
CPC (source: EP US)
B01D 53/885 (2013.01 - US); B01D 53/944 (2013.01 - EP); B01J 23/44 (2013.01 - EP); B01J 23/464 (2013.01 - EP); B01J 35/56 (2024.01 - EP US); B01J 37/00 (2013.01 - EP); C04B 38/0009 (2013.01 - US); F01N 3/101 (2013.01 - EP); F01N 3/2828 (2013.01 - EP); B01D 2255/1023 (2013.01 - EP); B01D 2255/1025 (2013.01 - EP); B01D 2255/2092 (2013.01 - EP); B01D 2255/407 (2013.01 - EP); B01D 2255/905 (2013.01 - EP); B01D 2255/908 (2013.01 - EP); B01D 2255/92 (2013.01 - US); B01J 23/63 (2013.01 - EP); F01N 2510/06 (2013.01 - EP); Y02T 10/12 (2013.01 - EP)
Citation (search report)
- [IPY] US 2018229183 A1 20180816 - KADOTA YOICHI [JP], et al
- [Y] JP 2009255032 A 20091105 - IBIDEN CO LTD
- See references of WO 2019065799A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3689455 A1 20200805; EP 3689455 A4 20210609; CN 111107933 A 20200505; JP 2019058872 A 20190418; JP 6698601 B2 20200527; US 2020222889 A1 20200716; WO 2019065799 A1 20190404
DOCDB simple family (application)
EP 18860742 A 20180927; CN 201880061582 A 20180927; JP 2017186473 A 20170927; JP 2018035837 W 20180927; US 202016830275 A 20200326